EFCC18 debiasing for UCAC-5 was applied to Gaia-DR3 instead. Wrong catalogue code was given in the input file, and fixed there in 2023... but plenty of old copies of the EFCC18 data are out there; this fix ensures they'll work correctly

Author: Bill-Gray

bias.cpp

@@ -201,6 +201,8 @@ int find_fcct_biases( const double ra, const double dec, const char catalog,
          fclose( ofile);
          }
       }
+   if( n_cats == 26 && catalog_codes[25] == 'W')   /* fix a mistaken catalog */
+      catalog_codes[25] = 'Y';                /* code in pre-2023 EFCC files */
    if( !catalog)        /* just inquiring as to which version we have */
       return( n_cats == 26 ? 2018 : 2014);
    catalog_loc = strchr( catalog_codes, catalog);